Electric pneumatic-pressure control.



E. K. PARKER. ELECTRIC PNEUMATIG PRESSURE CONTROL. APPLIOATIQN FILED 111111.14, w13.

1, 1 08,47@n Patented Aug. 25, 1914.

'U'N-ED STATES AC31A `ot Senta Barbero, in `.llnrl'inin und tritate `et Cnlitornin,

` inntic pressure :ind power nected at one end to n lever l),

` EDWARD PARSER, F tel.

` 1 ntnernio rnnonm Specification of 'Letters Patent.

PATENT OFFICE.

rn. nen-nenn, centrer-WIA.

rie-.niinesnnn oon'rnon `Pntented Auge, 25,

vinger. nivitlea alerting appneanon ined; Marcil 14;

1913. Serial No. 754,256.

youll/:127mmitma/ concern: p

Be it known that l, Emmen li. limiten, n citizen ot' the UnitedStates, nud resident the county el tlnifitn lieve invented new and neetul lfnproveinente in Electric Pneilnintic-Pressure Control," which the following is n. speciiticntion.

NMIy invention relfitcs to licontro'l tor use in pneumatic pressure zuid power eystenie, and :more pnrtieulzirlyitl relnteeto eleclfri callyv operated ineens tor controlliop;l the vulve in such systems, whereby the pneu metio pressure or power .muy he shut oli" or let on instnntnneously nt the will o the operator, or shut ell' uutolnetically et n predeterinined degree of pressure. i

The present npplicntion a division ol nn application filed hy ine ilugustl, Illl, Seriell lilo. 714,584 patented lec. lo, llllz, No. 1,081,693. l

p lillhile my invention is pnrticul arly adopted 'for use in devices wherein it is essentiel quickly to shut oil' and let on the power.y ne :tor exemple where pneunuitic pressure or power is employed tor send hlnst or :tor riveting, or lfoi.' other industriel purposes,

and is also ndepted Yfor nutonieticellv shutting ell the presinu'e in pneumatic pressiu'e eppnretus ior inllntii'ig tires, etc., when the pressure renc-hes e predetinfinined will he underetotwl tlnlt the invent ion ie h); no ineens limited to use in such environ niente, hut that it is adapted iter use in pneu systems generally.

ln the drawing; hereto annexed wliicl'i illustrates en embodiment olf iny ii'ivention, the ligure in n diagramme l view pnrtljT in section sind pnrtljv in eleintioii, oit on nutlp ninticelly controlled pneumatic preesure nppnrntus.

Referring` to the drawings, A is; :1n eirtight easing upon which ie i'lmunted n conduit B hnving :in inlet port t) :ind en outlet `port 7;', and forming in eilect n, pfn't `oll the easing. lNithin seid conduit l and lol between seid ports o and 7; ie :i vulve 'b2 'for the vnlve C, soidvelve being slidev mounted in seid conduit and pivotnlly eenA which in Vivoted Within said casing fl. nt d und provided with 2t stud d. Mounted upon the bottom of said casing in any suitable inenpoint g it nel' an electronnngnet.lll contain :ufinnture tf,nguidetuhe e" `zuid i A eprine; e is loented within snit between seid ernlnture `sind p hottonl of seid `'tliheg und seidnrnultli e i5 "provided nt ,its top with n lioolt or nojeition `cd if l e linger." of. Upon n side well 1l A. is njiounted nnother electro-unige Sistine; el" en :nl'lnsiture j', n guid, i nnd n, `coil fl. A. eprilig` "'3 is located within @eid tube j liletween"seid nriuuture"und the bottoni ot seid tlilhe; und seid :uinllture is provided nt its top with n hook or projection jf". tllidnhly.uioruited upon :in inner wnlloit seid cursing is n holt G' provided neer one en d with n stud 5],seid `holt :ulzlpted to oopeii-:lte with seid zii-nurture j io lock the valve C :in open position ns presently to he described. A. pressure gege ll" is mounted in the usuel ninnner upon an on the conduit l, :ind is provided with the `usuel dial 7l, index hand /t :1nd glnss trent. When the electro-inngnet lil is energized in the nin-nner described in my seid Patent No. 1,081,693, the nrinntiu'e c in drown down lfroin its nornuil position Shown in` dotted lines to the position. shown in ilull lines. Upon its downward pneenpge the hook e* en g'egges the stud d of the lever l) unlil draws seid lever dowinvnrd tllueI onuiino` the velue C; lt will he observed that the lioolt c" is of euch length that it hns traveled al. considernhle dietnnce upon its di'iunwnrd.pnsnage before it engnp'ie the stud (Z so th :it it strikes eliairlily against said stud and drnws the lever l)` `quickly downward. The nrninture e, :uid consequently the veli-e C, locked ind retnined in itsJ depressed position hy the `sf;lidini holt Gl which clear that its; the projection f", like the hook et, is relatively long, it has, traversed n. eonsiderahle diet-ence upon its hnoltwnrd moveis pushed .toi-wurd hy 1 nctunted hlt' the spring j,

uio

adapted to cooperate with said lever to open said Valve, a bolt, another electro-magnet mounted on said casing and comprising a spring-pressed armature adapted to cooperate With said bolt to lock said valve in open position, and tov unlock said valve.

2. In a device of the Class described, a. casing having an inlet port and an outlet portD e valve and valve seatlocated betiveen l said ports, a lever pivoted in said casing, a pivotal connection between'said lever and seid valve, an electro magnet mounted on said casing comprising a spring-pressed armature having a projection, said projection adapted to cooperate with said leverto open said valve7 a bolt slidably mounted on said casingl andlmving' a. stud, another electro-magnet mounted on said casing and comprising a springpressed armaturefhaving a projection. said armature adapted to cooperate with said bolt 'to lock said valve in open positionand said projection adapted to cooperate with saidstud to Withdraw said bolt, tlierebjv unlocking said valve.

Signed by me et Santa Barbara Califon nia this 4th dayof March 1913.`

v EDVARD K. PARKER.

lVtnesses G. H. POWELL, A. P. REDINGTON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

